import { Scene, HeatmapLayer } from '@antv/l7';
const scene = new Scene({
  id: 'map',
  style: 'dark',
  pitch: 43,
  center: [ 120.13383079335335, 29.651873105004427 ],
  zoom: 7.068989519212174,
  type: 'mapbox'
});

window.mapScene = scene;

fetch(
  'https://gw.alipayobjects.com/os/basement_prod/a1a8158d-6fe3-424b-8e50-694ccf61c4d7.csv'
)
  .then(res => res.text())
  .then(data => {
    const layer = new HeatmapLayer({})
      .source(data, {
        parser: {
          type: 'csv',
          x: 'lng',
          y: 'lat'
        },
        transforms: [
          {
            type: 'hexagon',
            size: 2500,
            field: 'v',
            method: 'sum'
          }
        ]
      })
      .size('sum', sum => {
        return sum * 200;
      })
      .shape('hexagonColumn')
      .style({
        coverage: 0.8,
        angle: 0,
        opacity: 1.0
      })
      .color('sum', [
        '#094D4A',
        '#146968',
        '#1D7F7E',
        '#289899',
        '#34B6B7',
        '#4AC5AF',
        '#5FD3A6',
        '#7BE39E',
        '#A1EDB8',
        '#C3F9CC',
        '#DEFAC0',
        '#ECFFB1'
      ]);
    scene.addLayer(layer);
  });
